- closed society
- closure
- cluster analysis
- co-determination
- co-operative
- co-optation
- code
- coding
- coding frame
- coefficient
- coercion
- coercive power
- cognate
- cognition
- cognitive consistency
- cognitive dissonance
- cognitive psychology
- cognitive sociology
- cognitive theory
- cohabitation
- cohort
- cohort rates
- Coleman Report
- Coleman, James S.
- collective action
- collective and distributive power
- collective bargaining
- collective behaviour
- collective conscience
- collective consumption
